diff --git a/start-notification-service.sh b/start-notification-service.sh
index 1d7bf7f13..1dc3f2dc8 100644
--- a/start-notification-service.sh
+++ b/start-notification-service.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-set -e
+set -ex
 
 # Lancer un vrai service DBus org.freedesktop.Notifications en Python
 python3 - <<'PY'